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CA2325990A1 - A trailing element device - Google Patents

A trailing element device

Info

Publication number
CA2325990A1
CA2325990A1 CA002325990A CA2325990A CA2325990A1 CA 2325990 A1 CA2325990 A1 CA 2325990A1 CA 002325990 A CA002325990 A CA 002325990A CA 2325990 A CA2325990 A CA 2325990A CA 2325990 A1 CA2325990 A1 CA 2325990A1
Authority
CA
Canada
Prior art keywords
downstream
disposed
upstream
relative
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002325990A
Other languages
French (fr)
Other versions
CA2325990C (en
Inventor
Eugene B. Neill
Mark A. Ryan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Technologies Oy
Mitsubishi Heavy Industries Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2325990A1 publication Critical patent/CA2325990A1/en
Application granted granted Critical
Publication of CA2325990C publication Critical patent/CA2325990C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D21F1/028—Details of the nozzle section

Landscapes

  • Paper (AREA)

Abstract

A trailing element device is disclosed for controlling the magnitude and scale of turbulence of stock flowing through a slice chamber (12) of a headbox of a papermaking machine. The device includes an upstream member (14), the upstream member including a locking portion (16) for locking the upstream member (14) relative to an upstream end (18) of the slice chamber. The upstream member (14) also includes a downstream portion (20) disposed within the slice chamber and downstream relative to the locking portion. An intermediate portion is disposed between the locking portion and the downstream portion (22) and a downstream member (24) is disposed downstream relative to the downstream portion. The downstream member (24) is fusion welded to the downstream portion (22).
CA002325990A 1997-05-12 1998-03-20 A trailing element device Expired - Fee Related CA2325990C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US85460597A 1997-05-12 1997-05-12
US08/854,605 1997-05-12
PCT/US1998/005663 WO1998051856A1 (en) 1997-05-12 1998-03-20 A trailing element device

Publications (2)

Publication Number Publication Date
CA2325990A1 true CA2325990A1 (en) 1998-11-19
CA2325990C CA2325990C (en) 2007-09-18

Family

ID=25319141

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002325990A Expired - Fee Related CA2325990C (en) 1997-05-12 1998-03-20 A trailing element device

Country Status (2)

Country Link
CA (1) CA2325990C (en)
WO (1) WO1998051856A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6521095B1 (en) 2002-02-05 2003-02-18 Metso Paper, Inc. Composite vane hinge in a headbox

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946756A1 (en) * 1999-09-29 2001-04-12 Voith Paper Patent Gmbh Stock inlet for a papermaking or cardboard prodn machine has a blade inserted between the rows of turbulence tubes with a lateral zone of a reduced cross section to reduce force peaks on starting/stopping the stock inlet
DE10051802A1 (en) * 2000-10-18 2002-04-25 Voith Paper Patent Gmbh Slat of a headbox of a paper, cardboard or tissue machine
EP1798337A4 (en) * 2004-10-05 2009-02-18 Toray Industries Flow sheet for paper machine and method of manufacturing the same
FI20055093A7 (en) * 2005-02-25 2006-08-26 Metso Paper Inc Turbulence element and method for manufacturing a turbulence element

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888729A (en) * 1972-11-06 1975-06-10 Joseph D Parker Papermaking machine headbox slice chamber containing pivotable thin rigid plates with flexible elements attached thereto
US3853697A (en) * 1973-03-08 1974-12-10 Beloit Corp Papermaking machine headbox with an upwardly inclined slice chamber portion, an arcuate portion, and a downwardly inclined portion and containing flexible trailing members
CA1230251A (en) * 1983-11-25 1987-12-15 Jose J. A. Rodal Converflo trailing element
DE3607306A1 (en) * 1986-03-06 1987-09-10 Voith Gmbh J M FABRIC OUTLET FOR THE PRODUCTION OF FIBERGLASS FILMS
SE501798C2 (en) * 1993-09-13 1995-05-15 Valmet Karlstad Ab Multilayer headbox
EP0681057B1 (en) * 1994-04-29 2002-08-28 Voith Paper Patent GmbH Multi-layer headbox

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6521095B1 (en) 2002-02-05 2003-02-18 Metso Paper, Inc. Composite vane hinge in a headbox

Also Published As

Publication number Publication date
CA2325990C (en) 2007-09-18
WO1998051856A1 (en) 1998-11-19

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed